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The screen on your laptop computer is the primary graphical interface that allows you to interact with your Gateway laptop computer. The screen is connected to your computer through video cables located within the base of the laptop. If your laptop will boot up but the screen remains black, it is likely the video or power cable on your Gateway laptop has somehow become disconnected. Reconnecting laptop hardware is a very difficult operation and is not recommended for anyone that is not familiar with computer hardware.
Remove the faceplate of your old laptop by removing the plastic hinges located on the sides of the base. The hinges can usually be removed with your fingers. Open the latches that secure the keyboard to your laptop. Some laptops use screws to secure the keyboard; remove these if necessary and unplug the connector. If you are having trouble finding the screws on your laptop, they are normally located near the corners. Unscrew the screws that connect your laptop screen to its base. The screws will be located near the bottom of the screen's base. Reconnect the video cable and power cord that connect your screen to your laptop and make sure they are firmly connected. Reassemble your laptop to complete the operation.
If your laptop appears to boot up and the hard disk LED flashes, then the problem is probably a back light fault. This can be a faulty inverter or a faulty CCFL lamp. Please click on this link and follow my instructions to identify the fault and possible fix :- http://www.fixya.com/support/r3598095-faulty_laptop_lcd_screen
You will have to remove the plastic strip that is around the lcd screen. Normally there are little bumpers on the plastic strip that you have to remove because they hide screws under them. Remove the bumpers, remove the screws, they gently pry the plastic strip off.
The screen itself is secured on brackets by screws, so just remove the screws from the sides of the lcd screen that secures it to the bracket. Afterwards you can bring the lcd forward as if you are closing it and the screen will fall into your hand. You don't want the screen to fall all the way out too far because there is a cable in the back of it that you will have to remove. On some models you might have to remove the screws from the brackets at the four corners to get the screen out.
Replace with lcd screen with one that is designed for your laptop, otherwise you'll be sorry.
Since so many different brands and models of laptops exist, specific causes of a white screen vary from laptop to laptop. The likely cause in most cases of a white screen on a laptop is a connection problem between the LCD screen and the video cable running from the motherboard. The issue can also reside strictly with the motherboard or the screen might contain a defect.
You can diagnose a white screen problem by opening up the laptop display case to determine whether a loose video connection on the back of the LCD screen exists. Reconnecting the video cable should resolve the white screen; a video cable reconnection that does not fix the white screen narrows the root cause to a problem with the motherboard or the screen.
The only way to determine if the laptop screen turns white due to a motherboard problem is to test out a different, working LCD screen with the laptop. This requires the user connect the inverter board--the power supply for the LCD back light--and the video cable to the test LCD. If the test LCD works with the motherboard, then the laptop's screen needs replacing; otherwise, a new motherboard is needed because there is no way to replace an integrated graphics card on a laptop motherboard.
sounds like your new screen cable is either loose or faulty.i had same problem and was only after i had removed keyboard and ensured cable was tightly connected did i solve the problem.it seems to be a design fault in the samsung v20
First of all, you have to check whether you can see video signal with surrounding light tilting the screen.
If you can see dim image, all you have to do is replace back-light inverter or fix it. Usually, the fuse is open and you can connect it by simple soldering.
If you can't see dim image, it is another problems.
Give it a try.
i have the exact same problem. try connecting the laptop to an external VGA screen. if it works, then the problem is most likely a loose cable (connector). It turns out that the connector (which connects the motherboard or gfx card to the LCD screen) on my laptop is torn and cut. see if u have the same problem. this link might help u check out ur problem: